See Through Umbrella &#34;STU&#34;

ABSTRACT

Garden and beach umbrella, usually used for protection from sun, as we need to cover a relatively large area to be used by several persons the umbrella should be large enough to achieve this task, therefore the intensive wind currents usually have bad effects on the stability of this kind of umbrellas due to its relatively large covering area. Creating gaps or holes through the umbrellas surface can reduce or minimize the bad effects of the wind against the umbrella while it still capable to protect users against direct sun. The present invention relates to a “See Through Umbrella”, which is an umbrella with a surface consists of several concentric polygons of fabric stripes of well designed width and fixed distance separating each adjacent two stripes to allow wind currents to pass through the surface easily leading to high degree of stability against blowing wind. This kind of umbrellas can be of two main different patterns either completely (as in FIG.  1 ) or partially (as in FIGS.  2   a  and  2   b ) covered with fabric stripes.

FIELD OF THE INVENTION

The present invention relates to a “See Through Umbrella”, which is agarden and beach umbrella with a new designed surface consists ofseveral concentric polygons of fabric stripes of well designed width(vertical depth) and fixed distance separating each adjacent two stripesto allow wind currents to pass through the umbrella's surface easilyleading to high degree of stability against blowing wind.

SUMMARY OF THE INVENTION

The present invention is an umbrella provided with several concentricpolygons of fabric stripes with a well designed width and apredetermined distance separating each two adjacent stripes (as in FIGS.1 & 2 a, 2 b and 2 c) to allow wind currents to pass through the surfaceeasily leading to high degree of stability against blowing wind.

The fabric stripes are fixed to a number of ribs by means of fixing andtensioning units, as in FIG. (4).

The fabric stripes cover of the umbrella is capable to obstruct thedirect sun ray wherever and whenever the sun is slightly inclined of thesummit.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view showing the “See Through Umbrella” which consistsof ribs, cover (Polygons of fabric stripes), the main post, theopen/close mechanism, fixing/tensioning unit and the base.

FIGS. 2 a, 2 b and 2 c shows a front view, perspective and top view of a“See Through Umbrella” totally covered with a See Through cover.

FIGS. 3 a and 3 b show a perspective and a top view of to patterns of“See Through Umbrella” with partial see through cover.

FIG. 4 a shows the fixing and tensioning unit connected to a rib inclose mode. This unit consists of a spring with its upper end connectedto the rib while the other end (the lower one) connected to the stripeholder which holds the fabric stripe.

FIG. 4 b shows the fixing and tensioning unit connected to a rib in openmode.

FIG. 4 c shows a section in the stripe holder and the direction of theforce applied by the spring on fabric stripe.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Garden and beach umbrella, usually used for protection from sun, as weneed to cover a large area to be used by several persons the umbrellashould be large enough to achieve its task. Therefore, the intensivewind currents usually have bad effects on the stability of this kind ofumbrellas due to its relatively large covering area.

The expected bad effects of the wind currents can cause either unstablestatus or a serious damage for umbrella's components

In order to overcome of the bad wind effects against the umbrella, ithas been provided with a new designed surface which consists of severalconcentric polygons of fabric stripes of well designed width (verticaldepth) and fixed distance separating each adjacent two stripes to allowwind currents to pass through the surface easily leading to high degreeof stability against blowing wind which means reducing or minimizing thebad effects of the wind against the umbrella while it still capable toprotect things against direct sun ray.

The “See Through Umbrella” provided with several concentric polygons offabric stripes as in FIG. 1 all these stripes have a pre-designed width(or vertical depth) and they are parted from each other by a designeddistance.

The fabric stripe polygons are mounted to a number of ribs as in FIGS. 1and 2, by means of a number of “fixing and tensioning units” as in FIGS.4 a, 4 b, and 4 c, each unit mounting one corner of a polygon to one ofthe ribs. The fixing and tensioning unit consists of two main parts:

-   -   The spring: with its upper end connected to the rib while the        other end (lower end) is connected to the stripe holder as in        FIGS. 4 a and 4 b. All springs apply a radial push away from the        main post of the umbrella to ensure straight tensioned sides of        the fabric polygons as in FIG. (4 c).    -   The stripe holder which is responsible upon holding the fabric        stripe as in FIG. 4 c.

The fabric stripes cover of the umbrella is capable to obstruct thedirect sun ray wherever and whenever the sun is slightly inclined of thesummit.

The “See Through Umbrella” can be either totally covered with a seethrough cover as in FIGS. 1 and 2 or it can be covered with a partialsee through cover as in FIGS. 3 a and 3 b.

1. “See Through Umbrella” is an umbrella of a surface consists(completely or partially) of concentric polygons of fabric stripesmounted perpendicularly to the umbrella's ribs.
 2. The fabric stripesare fixed to the ribs of the umbrella by a special fixing and tensioningunits which ensure straight tensioned portions of the fabric stripes inbetween each two units during the open mode.